21680376

素因数分解:

$2^3\times 3^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 34566024

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 59, 61, 118, 122, 177, 183, 236, 244, 251, 354, 366, 472, 488, 502, 708, 732, 753, 1004, 1416, 1464, 1506, 2008, 3012, 3599, 6024, 7198, 10797, 14396, 14809, 15311, 21594, 28792, 29618, 30622, 43188, 44427, 45933, 59236, 61244, 86376, 88854, 91866, 118472, 122488, 177708, 183732, 355416, 367464, 903349, 1806698, 2710047, 3613396, 5420094, 7226792, 10840188, 21680376]

約数ペア:

[(1, 21680376), (2, 10840188), (3, 7226792), (4, 5420094), (6, 3613396), (8, 2710047), (12, 1806698), (24, 903349), (59, 367464), (61, 355416), (118, 183732), (122, 177708), (177, 122488), (183, 118472), (236, 91866), (244, 88854), (251, 86376), (354, 61244), (366, 59236), (472, 45933), (488, 44427), (502, 43188), (708, 30622), (732, 29618), (753, 28792), (1004, 21594), (1416, 15311), (1464, 14809), (1506, 14396), (2008, 10797), (3012, 7198), (3599, 6024)]